Home / 103,301.07-155,034.63-53,395.79

Finding the Fourth Proportional to 103,301.07, 155,034.63 and 53,395.79

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Solution

The fourth proportional to 103,301.07, 155,034.63 and 53,395.79 is: 80,136.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,301.07 : 155,034.63 = 53,395.79 : x
  2. Step 2: Convert to fraction form
    103,301.07/155,034.63 = 53,395.79/x
  3. Step 3: Cross multiply
    103,301.07x = 155,034.63 × 53,395.79
  4. Step 4: Simplify right side
    103,301.07x = 8,278,195,771.03
  5. Step 5: Solve for x
    x = 8,278,195,771.03/103,301.07
  6. Step 6: Final answer
    x = 80,136.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.